Cita APA (7th ed.)
Penrose, J. M., Myers, R. J., & Rasberry, R. W. (1989). Advanced business communication. PWS-KENT Pub. Co..
Cita Chicago (17th ed.)
Penrose, John M., Robert J. Myers, i Robert W. Rasberry. Advanced Business Communication. Boston: PWS-KENT Pub. Co., 1989.
Cita MLA (9th ed.)
Penrose, John M., et al. Advanced Business Communication. PWS-KENT Pub. Co., 1989.
Atenció: Aquestes cites poden no estar 100% correctes.